pytorch

3ab20800 - Fix install libcaffe2_protos.a issue mentioned in #14317 (#17393)

Fix install libcaffe2_protos.a issue mentioned in #14317 (#17393) Summary: Fix install libcaffe2_protos.a issue mentioned in #14317. Pull Request resolved: https://github.com/pytorch/pytorch/pull/17393 Differential Revision: D14195359 Pulled By: soumith fbshipit-source-id: ed4da594905d708d03fcd719dc50aec6811d5d3f